Ceiling fan



FIG. 1 is a front view of a ceiling fan;

FIG. 2 is a left, bottom and front perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left, top and front perspective view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a right, bottom and front perspective view thereof.

The broken lines and the areas surrounded by the broken lines illustrateportions of the ceiling fan that form no part of the claimed design.

CLAIM The ornamental design for a ceiling fan, as shown and described.